Mechanical movement



x July 12, 1927.

A. D. HUDSON afm.

MECHANICAL MOVEMENT 4 Sheets-Sheet vl Original Filed June 23. 1926 @thor/nm,

July 12, 1927. 1,635,182

A. D. HUDSON E T AL MECHANICAL MOVEMENT y Original Filed June 23. 1926 4 Sheets-Sheet 2 I @5% @fad Jul-y 12, 1927. 1,635,182

A. D. HUDSON ET AL MECHANICAL MOVEMENT original Filed Jung ,2a-192s 4 sheets-Sheet 3 aga.

Julyf v12, 1927.

v D. HUDSON ET AL' vIMECHANICAL MOVEMENT original Filed June 2s. 192e' 4 sheets-sheet 4 ,4f/nana@ lia/d600 @hbox nu;

Pamesa July 12, 1927.

yUNITED STATES n 1,635,182 PATENT OFFICE..

ARMOND D. HUDSON, OF KEYAPAHA, AND EDWARD L. SMITH, OF MIILBORO, SOUTI-I DAKOTA, ASSIGNORS F ONE-FOURTH T0 WORLEY A. TIBBLES, OF MILIABORO, SOUTH DAKOTA, AND ONE-FOURTH TO BENJAMIN B. BUTTS, OF WINNER, SOUTH DAKOTA.

MECHANICAL MOVEMENT.

Application filed June 23, 1926, Serial No. 118,040. Renewed May 31, 1927.

This invention relates to improvements in mechanical movements, and objects of the invention are to produce a very effective, simple and economical apparatus which may be, used as a .convenient means for transmitting power, which is adapted to continuously operate for a long period of time withoutrequiring repair, and which is particularly intended for effecting the smooth operation and continuous rotation of a driven shaft. Y

Other objects will become apparent as the nature of the invention is better understood, and the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawings and claimed.y

In the drawings, wherein like reference characters indicate corresponding parts throughout the several views,

Figure 1 1s a side elevational view of a power transmitting mechanism constructed in accordance with the present invention;

Figure 2 is a top plan view thereof;

Figure 3 is an end elevationalview looking toward the right of Figure 1; and

Figure 4 is a substantially central vertical longitudinal sectional view of the device shown in Figure 1.

Referring more in detail to the drawings, the form of the invention shown consists of a suitable frame embodying a pair of vertical rigidly connected side frame plates 5 upon the rear portions of which is suitably journaled a transverse horizontal drive shaft 6. The drive shaft 6 extends from one frame plate 5 to the other and is formed between these frame plates with a plurality of cranks 7 arranged in suitably staggered relation. rlhe shaft 6 may be driven by a suitable motor 8 disposed and suitably mounted beside the frame and having its power shaft operatively connected to the adjacent end of the drive shaft 6 as by means of spur gearing indicated generally at 9. As shown, the cranks 7 are arranged in staggered relation upon the shaft 6.

Suitably journaled in the frame plates 5 near the forward ends of the latter and in a plane below the drive shaft 6 is a horizontal transverse driven shaft 10 adapted to be continuously rotated in accordance with the present invention by novel operative connection with the drive lshaft 6, power being taken from the shaftl() in any suitablenianner such as through the use of a pulley 'l1 fixed upon one end of the shaft 10 as shownV clearly in the several views.

Pivoted for vertical rocking movement .above the shaft 10 are a plurality of levers 12 which are arranged in spaced side by side relation between the frame plates 5 and correspond in number to the number of cranks 7 provided on the drive shaft 6, each lever 12 being aligned with one'ofthe cranks 7 as shown clearly in Figure 2. The r`levers 12 are pivoted between their ends preferably upon aI transverse horizontal hanger rod 13 whose` ends are secured in theA frame 'plates 5, andtilting movement of the levers l12 in one direction is limited by means of a trans-` verse horizontal stop rod 14 supported by the frame plates 5 and disposed in the path of and below the rear ends of they levers 12 as shown clearly in Figure 4. This stop rod 14 is adjustable vertically for vvarying thev tilting movement of thev levers 20. and for this purpose the frame plates 5v are preferably provided 'with vertical series of trans versely aligned pairs of apertures 15 adapt ed for selective receptionof the ends of the stop rod 14, it being understood that the ends of the rods 14 are engaged in hori-y zontally aligned ones of the apertures 15 in all adjusted positions.

vA plurality of ratchet wheels 16 are fixed upon the shaft 10 between the frame plat-es 5 so that one ratchet wheel is disposed directly below each lever 12, and carried by the forward end of each lever 121s a pawl 17 operatively disposed to engage and operate the adjacent ratchet wheel 16 lupon each downward movement of the said lever 12. As shown, the pawls 17 are pivoted to the forward ends of the levers 12 so as to depend adjacent the forward sides of the ratchet wheelsv 16, and these pawls are preferably spring pressed into engagement with the ratchet wheels by leaf springs 18 or the like. It is thus apparent that upon rocking the levers 12 the pawls 17 will act to turn the ratchet wheels 16 andvconsequently cause rotation of shaft `10, continuous rotation of the shaft 10 being effected by lactuating the levers 12 so that certain of the pawls are returning for a new actuation of' the associated ratchet wheels while others of the pawls are being moved downwardly and acting t turn the other associated i ratchet wheels. Obviously, the vertical adjustment ot the rod 14 will result in varying the strokes ofthe levers 12so as to thereby corr,esp ondingly vary the degree of movement iin-parted tozeachvratchet wheel 16 upon `the effective or operative stroke of the associated pawl 17.

In order to effect the rocking of the levers 12, a heavy wheel 19 =is disposed to Aroll on each lever 1Q. longitudinally of the latter and in a path backward andiforwardto oppo" site sides of the pivotjotl the lever. In order to guide the wheelsV 19 during their rolling movement and, to eiffective'ly'vprevent their displacement laterally oli' et' the levers 12, the latter ,are provided with suitable side guide lrailsfQ/Ofor the-likel between which the wheels 19 aredisposed. With this varrangem'en't Vthe wheels roll directly upon vthe levers andyare entirely4 spport'ed the saine at all times so thatY a tiXed supporting bed tor the wheelsindependent ot the levers is rendered unnecessary.-

To effect the rolling movement ot the e Wheels 19, eachjof said wheels is eonnected with 'the longitudinally aligned *crankl )T ot thes'haijt 6 by means, otalpitinan 2l having one end pivoted to an zii-m22 projecting upwardly rfrom the vassociated wheel 19 and having its other end jofurnaled on thewrist pin ofthe associatedcrank 7. vThe pitmen 21 are of si'milar'lenigth, and by reason Aoi the tact that thel 'cranks 7' are in s'taggered reA lation, thewheels '1 9 bemoved so that certain yof the same are moving forwardly for eiecting the @operative stroke ot cer tain oit, the pawls while others otl the wheels 19 are 1no vedrearwardlyfor effecting the fwrnjetrk@ ofthe 'remaining Pava In the constructionshownone pawl 17 will be completing its operative stroke :or downward movemennwhen y'z inothei pawl has completed approximately its operative stroke, and a third pawl will be just beginning its operative. stroke. l

The fourth pawl will` then have just'beg'un its return movement, while aii'iith one will beatf approximately the halfway position of its return stroke, Aand 'the last 4or lsixth pawl will Abei,just'completing its return stroke, preparatory to beginning an' operative.; inovement. `In 'this way a 'continuous rotation of shaft 10 'eifected in a smooth evenmanner. Furthermore, the "weight of the wheels 19 is utilized to effect turning of Jthe lshaft 10 rather thanthe'direct force applied to the pitmen 21, This actuation. of the shaft 10 isy accomplished 'byline-ans` involvingl a minimum amount of friction, and as the shaft V1() wil1rotate at a slower speed than shaft', a leverage ishad so that a comparatively great load may be imposed upon shaft 10 ev,en tho ugh the motor 8 is of a comparativelyl small size and of low power.

In operation, the motor ','isr4 placed into operation sowas to cause'cont'inuous turning ot `the shaft 6 and thereby effect rolling of the Wheels 19. bask 21.1.1d-t0-15thi1p0e the levers 1 2. Asthe wheels y 19 roll lforwardly ,past

. the rivets. ofthe ,leitete .12. the lette: till b@ rocked so as to cause downward movement of the attached pawls 17 and thereby effect rotation ot shaft 10. As certain ot' the 4wheels 19 are moving" iorxvardly, others will be moving rearwardly so that one or more pawls is active at all 'times 5'in turning shaft 10.

From fthe' vforegoii'ig description it'is Vbelieved thatl the construction and operation" as well as tl'ieadvanta'ges 'oif the` presentinvention Vwill be readily" understood and' -appreci'ated'by those skilled| in the art.

yMinor changes" 'may be `m`ade withontiieparting freni the lspirit and 'scope of 'the infY vention as claimed.

vWhat we claim as new 1S 1. In a power transmission m'elchan'isinf a pawl.

3. A structure as speciiiied in 'lai1n`j1,`

wherein said leveriis provideol fviithsii'de guide rails between whiclrthei wheel is' 'disposed toro`11. l

` tl'A lstructure speciiied'jfin""olaim' 1, wherein vthe'operativey eonnetion betweenz the `wheeland drive shattfemhodies a on xthe ydrive shaft, an arm' rigid with and ecfting upwardly' from "the wheel, and' av pitm'an :operatively conneti'ng'"the arm ywith said nk. V 5. Af power :transmission ine'chfani'sm -`including a'l transverseI horizontal diive. "shaft having a plurality 4of cranks'` arranged fin staggered relation, a plurality of vertically swinging levers. pivot-ed betw'eri` 'th'eirnds tor independent rockinginoyementiua transverse horizontal;driven'shaft liavino` ratc'l'iet wheels fixed thereon,a,pawl1 ca'rri'eby'ne end ot 'each lever and operatively associated Iwith one oi' saidratchet wheels, iiieans assol ciated withthe other endso'tthe lvers'tor limiting tilting movement of the leversin one drection'during' the inope'rativt"movements oi' 'the Ipl'ahwls, a 'plurality of `-,Weighted Wheelaeach' mounte for rolling movement longitudinally of one of the levers, and pitmen connections between the wheels and the cranks of said drive shaft, whereby the pawls are actuated in sequence for causing continuous rotation of the driven shaft,

6. In a. power transmission mechanisnna rotary drive shaft, a rotary driven shaft, a plurality of levers pivoted between their ends for vertical rocking` movement independent of each other, a heavy wheel mounted to roll longitudinally upon each of said levers in a path to opposite sides of its pivot, means operatively connecting the wheels to the drive shaft for rolling the same back and forth in said path, and means operatively connecting, the levers with the driven shaft for causing continuous rotation of the latter uponactuation of said wheels.

7 A power transmission mechanism comprising a frame having` a pair of vertical side plates, a transverse horizontal drive shaft journaled on said side plates, a transverse horizontal driven shaft journaled in the side plates at a point below the drive shaft and forwardly of the latter, a plurality of vertically swinging levers pivoted between their ends in spaced side by side relation between the side plates and above the driven shaft, depending pawls upon the forward ends of said levers operatively disposed forwardl of the driven shaft, ratchet wheels upon t e driven shaft respectively engaged by said pawls, said side plates being provided with vertical series of transversely aligned openings, a stop rod selectively engageable in desired ones of said pairs of openings within the path of and below the rear ends of said levers for limiting` the rocking movement of Ythe latter, heavy wheels mounted to roll longitudinally on the levers past the pivots of the latter, and means operatively connecting the wheels with the drive sha-ft whereby the wheels are respectively positioned at different points of their path of travel at all times during the operation of the mechanism.

8. In a power transmission mechanism, a lever pivoted between its ends for vertical rocking movement and having side guide rails, a heavy wheel mounted for rolling movement on and entirel supported by said lever between. saidl gui e rails, means to roll said wheel back and forth past the pivot of the lever, and means to transmit movement from the lever to a driven element.

In testimony whereof we aiiix our Signatures.

ARMOND D. HUDSON. EDWARD L. SMITH.v 

